| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic price-proposing system, device, and method, allowing a mobile type terminal device such as a mobile phone to easily obtain price information, when proposing prices electronically with a chaotic encryption method. <P>SOLUTION: An electronic price-proposing server is provided with: a secret-key recording means for recording identification codes assigned individually to multiple user terminals and calculation values thereof, in association with each of the users as secret keys thereof; an encrypting means for generating encryption data with the chaotic encryption method; a price-data recording means for recording the encryption data in association with the corresponding item and user; a searching means for searching for and reading encryption data corresponding to requests from user terminals; and a transmitting means for transmitting the result thereof to the user terminals. Meanwhile, the user terminals are provided with: a decrypting means for decrypting the received encrypted data, using an identification-code value read out from an identification-code value reading means, and generating the original price data; and a displaying means for displaying the decrypted price data. <P>COPYRIGHT: (C)2011,JPO&INPIT |
